Fast, private, browser-based tools
A practical workbench for AI builders, developers, and growth teams. Find a task, get to work, and keep your input in your browser.
Everyday tools, ready when you are
Start with the most useful utilities across AI, development, marketing, and business workflows.
LLM Token Counter
Estimate prompt tokens, characters, words, and rough model budget before sending text to an AI model. Runs in your browser with no account required.
Developer ToolsJSON Formatter
Format and pretty-print JSON so it is easier to read, debug, copy, and share. Runs in your browser with no account required.
Developer ToolsJWT Decoder
Decode JWT header and payload locally so you can inspect claims without uploading tokens. Runs in your browser with no account required.
SEO & Marketing ToolsUTM Builder
Build tagged campaign URLs for analytics, ads, newsletters, and launch tracking. Runs in your browser with no account required.
SEO & Marketing ToolsSERP Snippet Preview
Preview how a title, URL, and meta description may appear in Google search results. Runs in your browser with no account required.
Business CalculatorsROAS Calculator
Business CalculatorsProfit Margin Calculator
Business CalculatorsLTV Calculator
Browse by workflow
Each collection is designed around a focused set of tasks, from raw data to business decisions.
Your data stays in your browser
No account, no upload step, and no server round-trip. Current tools do their work locally in your browser.